hund's rule of maximum multiplicity

Hund's Rule of Maximum Multiplicity - According to this rule, electron pairing will not take place in orbitals of same energy (same sub-shell) until each orbital is first singly filled with parallel spin. In other words in a set of orbitals having s..

It states that when more than one orbital of equal energies are available then the electrons will first occupy these orbitals separately with parallel spins. The pairing of electrons will start only after all the orbitals of a given sub level are singly occupied. This is because electrons with par..

Electron pairing will not take place in orbitals of same energy (same sub-shell) until each orbital is first singly filled with parallel spi..

Events are said to be independent if the occurrence of one event does not affect the occurrence of others. If A and B are two independent events, then This is known as Multiplication Rule of Probability . The converse is also true, that is if two events A ..

Rules for Filling Molecular Orbitals - The following rules are followed for filling up molecular orbitals with electrons in order to write molecular configurations: 1. The molecular orbital having the lowest energy is filled first. This is in accordance with Aufbau principle as ..

In the multiplication or division of numbers, the final result should be reported up to the same number of significant figures as are present in the term with the least number of significant figure..

For the stability of an ionic compound, each cation should be surrounded by maximum number of anions and vice versa. The number of oppositely charged ions surrounding each ion is called its co-ordination numbe..

The longest continuous carbon chain containing the multiple (double or triple) bonds is selected. It is to be remembered that the parent chain must contain double or triple bond even if it is not the longest chain in the formula. For example, On the basis of the number of ..

For the stability of an ionic compound, each cation should be surrounded by maximum number of anions and vice versa. The number of oppositely charged ions surrounding each ion is called its co-ordination number. The larger is the size of the cation the greater is its coordination number..

Maximum number of electrons that can be accommodated in a shell is given by 2n 2 where n=shell number For 1 s t energy level, n = 1 Maximum number of electrons in 1 s t energy level = 2n 2 2 x (1) 2 = 2 For 2 n d energy level n=2 Maximum number of elec..